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Posted: **Sat Jul 12, 2014 6:16 pm**

While dropping the car for minor service, the dealer reported an oil leak with one of the turbos and recommended replacing! thanks god I have extended warranty as the estimated cost was some crazy Fu$*k figure. Wondering how often this happen? is it common or known with C6? as I had the C5 for over 3 years and never came across such issue with C5! While replacing any of them, does it required to replace both for any reason? Thanks

Posted: **Sun Jul 13, 2014 7:03 am**

the turbos should always be replaced in pair, that's what Audi recommends. This is to prevent any boost differences that might be caused by having an old turbo on one bank and a new one on the other, obviously a new turbo will perform better than one with 60-70k miles on it...

however, the oil leak might be due to a cracked oil pipe that feeds the turbo and not the actual turbo, have they confirmed it is indeed the turbo?
thank God for the warranty, this would've really pissed your bank account

Posted: **Sun Jul 13, 2014 9:26 am**

I tried to explain this, but without an audi documents proving that it will be difficult to get. Yes thanks for having the warranty!!

Posted: **Thu Jul 17, 2014 4:53 pm**

Out of curiosity how much did this cost or quote?

Posted: **Thu Jul 17, 2014 5:01 pm**

Finally I got my car yesterday and it feels really good

... The quote was over $7K USD .. Thanks god i have warranty .. The job is big, car was there 10 days as whole engine and gear went out. Wondering if both turbos went how much that would cost!!

Posted: **Fri Jul 18, 2014 12:13 pm**

that's good to know all is good now! you know that $10K is the limit for the extended warranty, they won't cover beyond that amount...hopefully you won't have other issues...as dumb as it sounds is true, at least at the Abu Dhabi Audi dealership, maybe it is different with Al Nabooda but i doubt it since both use the same company for extended warranties...

Posted: **Mon Aug 04, 2014 9:06 pm**

Update: after 2 weeks of having one of the turbos replaced and two (2) of Boost Pressure Control Valve (N249) replaced also, car is driving very good and no signs of any power loss or any oil leakage anymore. However, was running a scan after the job and found the below mentioned errors. I saved the first log and cleared the errors, did a test drive and full day drive and errors never appear again. Today I was doing a scan and found out that errors back again! any idea what could be the reason??

-------------------------------------------------------------------------------
Address 01: Engine (BUH) Labels: Redir Fail!
Part No SW: 4F1 910 552 E HW: 4F1 907 552 A
Component: 5.0L V10/4V TFSI ™0040
Revision: F1H05--- Serial number:
Coding: 01050000190F01B0
Shop #: WSC 01286 386 08256
VCID: 2643FAFD9199DB2EC1B-8073

3 Faults Found:
000665 - Boost Pressure Regulation
P0299 - 002 - Control Range Not Reached - MIL ON
Freeze Frame:
Fault Status: 11100010
Fault Priority: 2
Fault Frequency: 10
Reset counter: 255
Mileage: 109668 km
Time Indication: 0
Date: 2014.07.19
Time: 13:19:13

Freeze Frame:
RPM: 2800 /min
Load: 83.9 %
Speed: 124.0 km/h
Temperature: 98.0∞C
Temperature: 60.0∞C
Absolute Pres.: 990.0 mbar
Voltage: 13.335 V

008801 - Boost Pressure Control Valve (N249)
P2261 - 008 - Mechanical Malfunction
Freeze Frame:
Fault Status: 01101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 109687 km
Time Indication: 0
Date: 2014.07.19
Time: 13:42:58

Freeze Frame:
RPM: 3829 /min
Load: 9.4 %
Speed: 129.0 km/h
Temperature: 99.0∞C
Temperature: 84.0∞C
Absolute Pres.: 990.0 mbar
Voltage: 13.208 V

006435 - Please Check DTC Memory of ECU Number 2
P1923 - 008 -
Freeze Frame:
Fault Status: 01101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 111065 km
Time Indication: 0
Date: 2014.08.04
Time: 20:00:13

Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 84.0∞C
Temperature: 85.0∞C
Absolute Pres.: 990.0 mbar
Voltage: 11.811 V

Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 11: Engine II Labels: Redir Fail!
Part No SW: 4F1 910 552 E HW: 4F1 907 552 A
Component: 5.0L V10/4V TFSI ™0040
Revision: F1H05--- Serial number:
Coding: 01050000190F01B0
Shop #: WSC 01286 386 08256
VCID: 2643FAFD9199DB2EC1B-8073

2 Faults Found:
000665 - Boost Pressure Regulation
P0299 - 002 - Control Range Not Reached - MIL ON
Freeze Frame:
Fault Status: 11100010
Fault Priority: 2
Fault Frequency: 10
Reset counter: 255
Mileage: 109668 km
Time Indication: 0
Date: 2014.07.19
Time: 13:19:13

Freeze Frame:
RPM: 2802 /min
Load: 83.9 %
Speed: 123.0 km/h
Temperature: 98.0∞C
Temperature: 60.0∞C
Absolute Pres.: 990.0 mbar
Voltage: 13.208 V

012420 - Turbo/Super Charger Bypass Valve; Bank 2
P3084 - 008 - Mechanical Malfunction
Freeze Frame:
Fault Status: 01101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 109771 km
Time Indication: 0
Date: 2014.07.19
Time: 22:14:15

Freeze Frame:
RPM: 3535 /min
Load: 6.3 %
Speed: 89.0 km/h
Temperature: 96.0∞C
Temperature: 66.0∞C
Absolute Pres.: 990.0 mbar
Voltage: 13.462 V

-------------------------------------------------------------------------------

Posted: **Thu Aug 07, 2014 11:40 pm**

vangelis wrote:Update: after 2 weeks of having one of the turbos replaced and two (2) of Boost Pressure Control Valve (N249) replaced also, car is driving very good and no signs of any power loss or any oil leakage anymore. However, was running a scan after the job and found the below mentioned errors. I saved the first log and cleared the errors, did a test drive and full day drive and errors never appear again. Today I was doing a scan and found out that errors back again! any idea what could be the reason??

-------------------------------------------------------------------------------
Address 01: Engine (BUH) Labels: Redir Fail!
Part No SW: 4F1 910 552 E HW: 4F1 907 552 A
Component: 5.0L V10/4V TFSI ™0040
Revision: F1H05--- Serial number:
Coding: 01050000190F01B0
Shop #: WSC 01286 386 08256

VCID: 2643FAFD9199DB2EC1B-8073

3 Faults Found:
000665 - Boost Pressure Regulation
P0299 - 002 - Control Range Not Reached - MIL ON
Freeze Frame:
Fault Status: 11100010
Fault Priority: 2
Fault Frequency: 10
Reset counter: 255
Mileage: 109668 km
Time Indication: 0
Date: 2014.07.19
Time: 13:19:13

Freeze Frame:
RPM: 2800 /min
Load: 83.9 %
Speed: 124.0 km/h
Temperature: 98.0∞C
Temperature: 60.0∞C
Absolute Pres.: 990.0 mbar
Voltage: 13.335 V

008801 - Boost Pressure Control Valve (N249)
P2261 - 008 - Mechanical Malfunction
Freeze Frame:
Fault Status: 01101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 109687 km
Time Indication: 0
Date: 2014.07.19
Time: 13:42:58

Freeze Frame:
RPM: 3829 /min
Load: 9.4 %
Speed: 129.0 km/h
Temperature: 99.0∞C
Temperature: 84.0∞C
Absolute Pres.: 990.0 mbar
Voltage: 13.208 V

006435 - Please Check DTC Memory of ECU Number 2
P1923 - 008 -
Freeze Frame:
Fault Status: 01101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 111065 km
Time Indication: 0
Date: 2014.08.04
Time: 20:00:13

Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 84.0∞C
Temperature: 85.0∞C
Absolute Pres.: 990.0 mbar
Voltage: 11.811 V

Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 11: Engine II Labels: Redir Fail!
Part No SW: 4F1 910 552 E HW: 4F1 907 552 A
Component: 5.0L V10/4V TFSI ™0040
Revision: F1H05--- Serial number:
Coding: 01050000190F01B0
Shop #: WSC 01286 386 08256
VCID: 2643FAFD9199DB2EC1B-8073

2 Faults Found:
000665 - Boost Pressure Regulation
P0299 - 002 - Control Range Not Reached - MIL ON
Freeze Frame:
Fault Status: 11100010
Fault Priority: 2
Fault Frequency: 10
Reset counter: 255
Mileage: 109668 km
Time Indication: 0
Date: 2014.07.19
Time: 13:19:13

Freeze Frame:
RPM: 2802 /min
Load: 83.9 %
Speed: 123.0 km/h
Temperature: 98.0∞C
Temperature: 60.0∞C
Absolute Pres.: 990.0 mbar
Voltage: 13.208 V

012420 - Turbo/Super Charger Bypass Valve; Bank 2
P3084 - 008 - Mechanical Malfunction
Freeze Frame:
Fault Status: 01101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 109771 km
Time Indication: 0
Date: 2014.07.19
Time: 22:14:15

Freeze Frame:
RPM: 3535 /min
Load: 6.3 %
Speed: 89.0 km/h
Temperature: 96.0∞C
Temperature: 66.0∞C
Absolute Pres.: 990.0 mbar
Voltage: 13.462 V

I had exactly the same codes on mine!
I took it to mrc and had the map updated and there has been
No trouble since! Has your engine management light come on?
-------------------------------------------------------------------------------

Posted: **Fri Aug 08, 2014 7:17 am**

No it's not coming on and car drive absolutely fine. I'm going to drop it to the dealer tomorrow to investigate! Hope it won't be a bad parts otherwise engine and gear out again!

Posted: **Thu Sep 11, 2014 5:44 pm**

A quick update to everyone on the root cause of that error, what I thought of was correct. After the car got a new turbo installed and this error start to show every time I scan, It turned up that other turbo also need to be replaced although it does not show any kind of leakage or fault. The dealer agreed (finally) that old turbo is not capable of producing the same exact requested boost like the new turbo that just installed. Hence, I'm getting the other turbo replaced

I hope this will resolve the issue and make some difference on the dyno and show 700+ BHP in real

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